JPS6262149A - Trouble indicating device for equipment capable of remote controlling - Google Patents

Abstract

PURPOSE:To permit quick repairing by a method wherein a plurality of remote control units is provided and the trouble of a remote control unit is indicated in an indicator when either one of the control units is in trouble. CONSTITUTION:A main remote control unit 4A receives data, such as combustion condition, a detected hot-water temperature or the like, from a main control unit and transmits the data to remote control units 4B, 4C whereby controls respective lamps 17-19, respective indicating units 21-24 and an indicator 20. When the control unit 4A addresses control units and the unit 4A does not receive any signal to respond the address within a predetermined time, the unit 4A outputs to a control circuit 26A a signal to indicate an error code, which means that the main control unit is abnormal, in a hot-water temperature indicator 20 instead of a hot-water temperature and lights up the indicating unit 21 whereby a fact that the main control unit is in trouble is informed. Next, the control unit 4A addresses the remote control units 4B, 4C and when tnere is any abnormality, the error code is indicated to inform the abnormality while the indicating units 22, 23 are lighted up.

Description

DETAILED DESCRIPTION OF THE INVENTION B) Field of Industrial Application The present invention relates to a failure display device for remotely controllable equipment, and is applied to remote control of domestic boilers, water heaters, etc.

(b) Conventional technology Refusal Conventional remote control has only one remote control unit, as disclosed in Japanese Patent Application Laid-open No. 104894/1983.
When a plurality of remote control units are provided and one of the remote control units fails, there is no failure indication.

(c) Problems to be Solved by the Invention In view of the above points, the present invention provides a plurality of remote control units, and when any of the control units malfunctions, the display on the main remote control unit is displayed. The purpose is to quickly resolve the malfunction by displaying 1'' to that effect.

(d) Means for solving the problem To this end, the present invention provides a main control section that controls the equipment;
The main remote control section includes a main remote control section and a remote control section that are respectively connected in parallel to the main control section via a common signal transmission line and remotely control the equipment, and the main remote control section includes a display and a remote control section. and a means for transmitting and receiving signals to and from the remote control unit via the common line, and a failure detection unit for detecting an abnormality in the remote control unit when a signal is given to the remote control unit and a response to the signal is not obtained. and failure display control means for controlling the display to display a failure when a failure is detected by the detection means.

<*) If a signal that addresses the remote control unit (4B) and does not receive a response signal from the control unit (4B) within a predetermined time, outputs that fact to the control circuit (26A). Then, instead of the water temperature, the hot water temperature display (20) displays ``1E3'' indicating that the remote control unit (4B) is abnormal, and lights up the ``1 shower, etc.'' display unit (22).

(f) Example An embodiment of the present invention will be described below based on the drawings.

ke) is the water heater main body, (2) is the main control section that controls the water heater main body (1), and the signal transmission common line (2) is connected to the main control section (2).
3) through the main remote control unit (4A) and the remote control unit (4A).
B> (4C) are connected in parallel. (5) is a heat source control section, which directly controls the heat source such as the burner of the main body, and includes a fuel supply pump, a solenoid valve, a proportional valve, and their driving section. (6) controls the heat source control section (5), and a microcomputer (hereinafter referred to as microcomputer) is involved in this.

(7) is a hot water temperature detection section that detects the hot water temperature of the main body (1), which includes a thermistor (8), a dividing resistor (9), a reference voltage (10
), operational amplifier 1) and proportional gain adjustment resistor (12)
Consists of etc.

(13) is a transmitting/receiving interface section which performs transmission and reception with the main remote control section (4A), and usually a microcomputer or the like is used. The main remote control unit (4A) is attached to the wall of the kitchen, for example, the remote control unit (4B) is attached to a predetermined wall of the bathroom, and the remote control unit (4C) is attached to a predetermined wall of the bathroom on the second floor. 3) can be buried in the wall. The main remote control unit (4A) and remote control units (4B) and (4C) include an operation switch (14) and a hot water temperature switch (15).
, water temperature fine adjustment switch (16), operation lamp (17), priority lamp (18), combustion lamp (1
9) and monitors such as a two-digit hot water temperature display (20) consisting of a 7-segment LED element, and displays indicating ``lukewarm'', ``shower, etc.'', ``slightly hot'', ``hot'', etc. It is equipped with parts (21), (22), (23), and (24).

(25A) is the main remote control unit (4A) that performs transmission and reception with the transmission/reception interface unit (13) of the main control unit (2) and the transmission/reception interface unit (25B) (25C) of the remote control unit (4B>(4C)). The interface section (26A) is a control circuit that transmits and receives operation inputs from switches such as the operation switch (14) to each remote control section (4B) via the interface section (25A).
(4C) or the main control unit (2), or send it to the main control unit (2).
It controls receiving the detection output from the hot water temperature detection unit (7) and displaying it on the hot water temperature display unit (20), and receiving the output from the operation of the switches and displaying it on the monitors. Specifically, it is a microcomputer, etc.

In this embodiment, the number of remote control units is two, but the number is not limited to this, and various increases and decreases are possible.

The operation of the above configuration will be explained below.

First, when the operation switch (14) of the main remote control section (4A) is pressed and closed, the control circuit (2
6A) turns on the driving lamp book 17) and also activates the transmitting/receiving interface section (13) of the main control section (2) or the transmitting/receiving interface section (4B>(4C)) of the main control section (2) via its own transmitting/receiving interface section (25A). 25
B) Output the signal to (25C). Then, the microcomputer (6) controls the heat source control section (5) and starts the water heater main body (1).
) starts combustion by the burner. Next, press and close the hot water temperature selector switch (15), and the control circuit (2
6A), the display section (21) indicating "lukewarm" lights up, and the set temperature becomes 39°C. Furthermore, there is a hot water temperature switch (
15), the display section (22) indicating "Shower, etc." lights up and the temperature is set to 42°C, and each time the selector switch (15) is depressed, the right display section lights up in sequence. Become. When the set temperature is 76°C, the display section (24) indicating ``Warm'' returns to the original state, and the display section 21 indicating ``Lukewarm'' lights up.In this way, the temperature Once the settings have been made, the control circuit (26A)
, transmission/reception (g interface section (25A) (13)
The set temperature output is input to the microcomputer (6) via the microcomputer (6), and the detection output of the hot water temperature detection section (7>) in the water heater body (1) is also input to the microcomputer (6).
) controls combustion in the water heater main body (1) by comparing the power of both rivers and controlling the heat source control section (5) based on the comparative output. In addition, the detection output of the hot water temperature detection section (7) is sent to the control circuit (<26 A) via the transmission/reception interface section (13) (25 A), and the hot water temperature is displayed on the hot water temperature display (20). It is.

Next, the method of transmitting each data by time division (polling/selecting method) between the main control unit (2), main remote control unit (4A), and remote control units (4B) (4C), which is carried out in this way, is as follows. state

First, as shown in Figure 3, please send a message from the main remote control unit (4A) to the main control unit (2) and the remote control unit (4B>(4G) from the main control unit (2>). The main control unit (2) is addressed by outputting a specific code, and the main control unit (2) is addressed.
The main remote control unit (4A) receives a response signal from 2). Next, the main control section (2) and the remote control section (4B)
(4C) says, “Please send from the remote control unit (4B).

” by outputting a specific code to the remote control unit (4B).
The main remote control (4A) receives a signal from the remote control (4B) in response to the address. Next, address the remote control unit (4C) in the same way, and
receive a signal in response to this. In this way,
The main remote control section (4A) receives data such as the combustion state and detected hot water temperature from the main control section (2), transmits the data to the remote control sections (4B) and (4C), and sends the data to the respective lamps (17). (18)
(19) and each display section (21) (22) (23) (24)
) and the display (20), and also controls the remote control unit (
4B) (4C) receives data on the operation status of the operation switch (14), etc. and the set water temperature, and transmits it to the main control section (2). Of course, the data operated and set in the main remote control unit (4A) is also transferred to the main control unit (2) and the remote control unit (4A).
4B>(4C).

Next, based on the flowchart shown in FIG. 4, a case where the main control section (2) or the remote control sections (4B) (4C) breaks down will be described. First, the main remote control section (4A) addresses the main control section (2), and if a response signal from the main control section (2) is not received within a predetermined time,
This is output to the control circuit (26A), and the hot water temperature display (20) displays ``1E2'' indicating that the main control unit (2) is abnormal instead of the hot water temperature, and the display section (1E2) indicating ``1 Lukewarm'' (
21> can be turned on to notify the user that the main control section (2) has failed. Next, the remote control section (4B)
address, and if there is any abnormality, contact the remote control unit (4).
"1E3" indicating that B) is abnormal is displayed, and the "Shower, etc." display section (22) is lit. In addition, the remote control unit (4
If C) is out of order, 1E4'' is similarly displayed and the 1 slightly hot 1 display section (23) is lit.

By displaying the error hood instead of the water temperature on the hot water temperature display (20) in this way, it is possible to notify that there is a failure at a specific location, and also to display the error hood on the hot water temperature display (20).
By lighting up (23) and (24), in addition to displaying their original meanings, it is also possible to display a given meaning to notify of a malfunction.

(G) Effects of the Invention As described above, the present invention can display malfunctions in the remote control unit on the display of the main remote control unit, so the user can be promptly notified of the abnormality and repaired. can be done quickly.

[Brief explanation of the drawing]

Figure 1 is a block diagram showing the system of the present invention, Figure 2 is a block diagram showing the system of the present invention.
FIG. 3 is an external view of the main remote control unit, FIG. 3 is a diagram for explaining time-division data transmission, and FIG. 4 is a flowchart. (1)...Water heater body, (2)...Main control section, (
3)... Signal transmission common line, (4A)... Main remote control section, (4B bar 4C)... Remote control section, (13) (
25A) (25B>(25C)... Transmission/reception interface section, (20)... Water temperature display, (26A
> (26B) (26C)...Control circuit. Applicant Sanyo Deniso Co., Ltd. and 1 other agent Patent attorney Shizuka Sano Husband 2 Figure 4 "4"

Claims (1)

[Claims] (1) Consisting of a main control unit that controls the equipment, and a main remote control unit and a remote control unit that are connected in parallel with the main control unit via a common signal transmission line and remotely control the equipment; The remote control unit includes a display, a means for transmitting and receiving signals between the main control unit and the remote control unit via the common line, and a signal that cannot be given to the remote control unit to obtain a response to the signal. The remote controller is characterized by comprising a failure detection means for detecting an abnormality in the remote control unit, and a failure display control means for controlling the display to display a failure when a failure is detected by the detection means. A malfunction display device for remotely controllable equipment.